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ICL7139CPL from INTERSIL

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ICL7139CPL

Manufacturer: INTERSIL

33/4 Digit, Autoranging Multimeter

Partnumber Manufacturer Quantity Availability
ICL7139CPL INTERSIL 1 In Stock

Description and Introduction

33/4 Digit, Autoranging Multimeter The ICL7139CPL is a 3½-digit analog-to-digital converter (ADC) manufactured by **INTERSIL** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual data:  

### **Specifications:**  
- **Resolution:** 3½ digits (2000 counts)  
- **Input Voltage Range:** ±200mV or ±2V (user-selectable)  
- **Conversion Rate:** 3 readings per second (typical)  
- **Supply Voltage:** ±5V (dual supply) or +5V (single supply)  
- **Power Consumption:** Low power (typically 1mW)  
- **Reference Voltage:** Internal or external reference option  
- **Display Drive:** Directly drives LCD displays (no external driver needed)  
- **Operating Temperature Range:** 0°C to +70°C  

### **Descriptions:**  
- The ICL7139CPL is a precision, low-power ADC designed for **digital panel meters** and **portable instrumentation**.  
- It includes **auto-zeroing** and **auto-polarity** functions for accurate measurements.  
- The device integrates a **multiplexed LCD driver**, eliminating the need for additional components.  
- It is housed in a **40-pin PDIP (Plastic Dual In-line Package)**.  

### **Features:**  
- **True Differential Input** for noise rejection.  
- **Low Power Consumption** (suitable for battery-operated devices).  
- **On-Chip Clock Oscillator** (no external clock required).  
- **Overrange and Underrange Indication** (for out-of-range signals).  
- **Single or Dual Supply Operation** (flexible power options).  
- **Internal Reference Voltage** (2.8V typical).  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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